Naomasa Kimura

Title: Naomasa Kimura: Innovating Catalyst Regeneration and Production Processes

Introduction

Naomasa Kimura, an esteemed inventor based in Okayama, Japan, has made significant contributions to the field of chemical engineering, particularly in catalyst regeneration and production processes. With a total of seven patents to his name, his work is influential in advancing methodologies that are vital for modern industrial applications.

Latest Patents

Among his latest innovations, Naomasa Kimura has developed a method for regenerating heteropolyacid catalysts, which is critical for improving the efficiency of these deteriorated catalysts that lose activity over time. This invention provides a means to restore catalysts composed of molybdophosphoric and molybdovanadophosphoric acid to an activity level comparable to fresh catalysts. The method involves mixing a deteriorated catalyst with nitrogen-containing heterocyclic compounds while ensuring the right ratio of ammonium ions to nitrate anions, followed by drying and calcination processes.

Additionally, Kimura holds a patent for a groundbreaking process for the production of acrolein and acrylic acid via vapor-phase oxidation of propylene. This innovative process utilizes Mo–Bi–Fe-based compound oxide catalysts, arranged in fixed-bed multitubular reactors. Notably, the design of the reaction tubes incorporates multiple zones with varying catalyst compositions, optimizing production yield and stability over extended periods.

Career Highlights

Throughout his career, Naomasa Kimura has formed a notable legacy at Nippon Shokubai Co., Ltd., where he has been instrumental in developing advanced chemical processes and catalysts. His contributions not only enhance the company's product offerings but also position Nippon Shokubai as a leader in the chemical industry.

Collaborations

Kimura's innovative work has often been a collaborative effort with esteemed colleagues, including Hideo Onodera and Michio Tanimoto. Their combined expertise underscores the collaborative nature of innovation in the field of chemistry, leading to advancements that benefit various industrial applications.

Conclusion

Naomasa Kimura's contributions to the realm of chemical engineering through his patents reflect a deep commitment to innovation and efficiency. His methods for catalyst regeneration and production processes are paving the way for more sustainable industrial practices, showcasing the pivotal role of inventors in driving progress in technology and manufacturing.